truss parts-all parts of truss explain in urdu/hindi/english

in this lecture i tech about the folowing topics, truss parts-all parts of truss explain in urdu/hindi/english, truss problems, truss problems in engineering mechanics, truss putter, truss per difficulty chart obby, truss putter review, truss rafter, truss cleats, truss eave detail, truss eave, truss pitch, truss purlin, truss purlin spacing, truss batten, view this video.... bulk density of sand.....https://bit.ly/2QhuQYR, accelaters in concrete...https://bit.ly/2Qd8veR, grading of agregates....https://bit.ly/2OIWmhs, sand test....https://bit.ly/3vFluGG , sand impurities...https://bit.ly/3s4Mxcg, admixture for concret...https://bit.ly/3bXF5d3 , properties of concreat...https://bit.ly/2NxrQ9M